Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

2026-05-30 15:09:27 +02:00 · 2025-12-06 02:17:48 +04:00
commit 8344b97e03
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+//
+//  ASDisplayNode+Convenience.mm
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import <AsyncDisplayKit/ASDisplayNode+Convenience.h>
+
+#import <UIKit/UIViewController.h>
+
+#import <AsyncDisplayKit/ASDisplayNodeExtras.h>
+#import "ASResponderChainEnumerator.h"
+
+@implementation ASDisplayNode (Convenience)
+
+- (__kindof UIViewController *)closestViewController
+{
+  ASDisplayNodeAssertMainThread();
+  
+  // Careful not to trigger node loading here.
+  if (!self.nodeLoaded) {
+    return nil;
+  }
+
+  // Get the closest view.
+  UIView *view = ASFindClosestViewOfLayer(self.layer);
+  // Travel up the responder chain to find a view controller.
+  for (UIResponder *responder in [view asdk_responderChainEnumerator]) {
+    UIViewController *vc = ASDynamicCast(responder, UIViewController);
+    if (vc != nil) {
+      return vc;
+    }
+  }
+  return nil;
+}
+
+@end